Appearance: The bricks have a satisfactory cement color, which is uniform in shade and smooth, but does not need plastering for building works
Thermal Conductivity: They do not absorb heat and give extreme light reflection.
Sound Insulation: It gives an adequate degree of sound insulation.
Fire And Vermin Resistance: They have adequate fire resistance, it has no difficulty with vermin attacks.
Durability And Moisture Content: These blocks are highly durable, the absorption of moisture is 6–12%, which decreases the humidity of the walls.
Toxicity And Stability: When mixed with lime, fly ash turns into a non-toxic commodity thus has potential as a good building material.